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Updated: Aug 21, 2026

Profiling the Triacylglyceride Contents in Bat Integumentary Lipids by Preparative Thin Layer Chromatography and MALDI-TOF Mass Spectrometry
Published on: September 5, 2013
[Study on analysis of thioglycolic acid in cosmetics by ion chromatography]
Zhixiong Zhong1, Da'an Du, Chunsui Liang
1Center of Disease Control and Prevention of Guangdong Province, Guangzhou 510300, China.
Objective:
An analytical method of determinating thioglycolic acid in cosmetics by ion-exchange chromatography suppressed conductivity detection has been developed.
Methods:
A high capacity anion exchange column, IonPacAS11-HC column was used. 25mmol/L NaOH + 1% methanol was used as eluent, and the flow rate was set up at 0.85ml/min. Samples were pretreated by extraction with CHCl3 to remove some organic substance, and then upper clean liquid was injected.
Results:
The influence of samples' pH, coexist anion and the concentration of methanol in eluent on determination was discussed. The method enjoyed a wide linear range and good precision. The detection limit was 2.3mg/kg. The average recoveries were 91.5% - 10.0%, and the relative standard deviation (RSD%) was less 0.941.
Conclusion:
The results showed that the method was simple, accurate and might be good for application.
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